Redeem

The redeem function converts a specified quantity of bTokens into the underlying asset, and returns them to the user. The amount of underlying tokens received is equal to the quantity of bTokens redeemed, multiplied by the current Exchange Rate. The amount redeemed must be less than the user's Account Liquidity and the market's available liquidity.

BErc20 / CEther

function redeem(uint redeemTokens) returns (uint)

• msg.sender: The account to which redeemed funds shall be transferred.

• redeemTokens: The number of bTokens to be redeemed.

• RETURN: 0 on success, otherwise an Error code

Solidity

CEther bToken = CEther(0x3FDB...);
require(bToken.redeem(7) == 0, "something went wrong");

Web3 1.0

const bToken = BErc20.at(0x3FDA...);
bToken.methods.redeem(1).send({from: ...});